Science Literacy Refer to the Graphs Below to Answer the Following

Science Literacy Refer to the graphs below to answer the following questions. Below are data from a study (described in Module 6.3) conducted by Michael Lesser,Marc Slattery,and colleagues.The rate of photosynthesis (Graph A) and the amount of carbohydrate present (Graph B) ,an indication of photosynthetic production of sugars,were determined in sponges exposed to current temperature and pH (control) or to one of three test groups: the expected pH in 2100 (test group 1) ,the expected temperature in 2100 (test group 2) ,or both (test group 3) . (Note: Significant difference between groups is denoted by a different letter above the bars; if two groups share the same letter,they are not statistically different.)
-Which groups in Graph A are not statistically different from each other?

A) the control group and the reduced pH group
B) the reduced pH group and the elevated temperature group
C) the elevated temperature group and the elevated temperature combined with reduced pH group